no mention. he makes a new claim in his new ad calling his label "extreme." >> his extreme ideas will cost us. >> switching channels to the governor's race, martin o'malley returns to rockabilly. -- to rockville. a new radio ad includes barack obama. >> i know the governor has made the tough decisions to the education, say to come and job creation circuit reversed. stand with me, barack obama, in helping my friend and moving forward. >> some democrats have kept the president at a distance, but not of malley in response to a question today. >> i am grateful he has done this advertisement. i hope we see him in maryland. >> the president will make a stop in person for a malley next week. he is no doubt hoping he could inspire democratic voters to skip the primary. also coming this week, mayor michael bloomberg. reporting live, wbal-tv 11 news. >> ever since these advertisements have hit the airwaves, you can see all of the fact tracks on wbaltv.com and what could happen to the balance of power. click on "politics." >> the baltimore police department is mourning the loss of one of their officers.